Hymenodictyon

Hymenodictyon
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Rubiaceae
Subfamily: Cinchonoideae
Tribe: Hymenodictyeae
Genus: Hymenodictyon
Wall.
Type species
Hymenodictyon orixense
Species

~ 30 species, see text

Hymenodictyon is a genus of flowering plants in the family Rubiaceae. It has about 30 species.[1] All are native to the Old World. The wood of Hymenodictyon orixense is soft and has limited use, mostly for boxes.[2] The type species for Hymenodictyon is Hymenodictyon orixense (synonym: Hymenodictyon excelsum).[3][4]

Hymenodictyon was named by Nathaniel Wallich in 1824 in an addendum to William Roxburgh's Flora Indica, in an edition published by Carey and Wallich after Roxburgh's death.[5][6] The generic name is derived from two Greek words, hymen, "membrane", and diktyon, "net". It refers to the wing that surrounds each seed.[7]

Molecular phylogenetic studies have shown that Hymenodictyon is paraphyletic over the Madagascan genus Paracorynanthe.[8]

In Hymenodictyon and Paracorynanthe, the stipules bear large deciduous glands called colleters. The corolla tube is narrow at the base, gradually widening toward the apex. The fruit is a woody capsule.

Species

As of March 2023, Plants of the World Online accepted the following species:[9]

References

  1. ^ Hymenodictyon At: World Checklist of Rubiaceae At: Kew Gardens Website. (see External links below).
  2. ^ David J. Mabberley. 2008. Mabberley's Plant-Book third edition (2008). Cambridge University Press: UK. ISBN 978-0-521-82071-4
  3. ^ Hymenodictyon In: Index Nominum Genericorum. In: Regnum Vegetabile (see External links below).
  4. ^ David J. Mabberley. 1982. Hymenodictyon orixense, page 66. In: "William Roxburgh's 'Botanical description of a new species of Swietenia (Mahogany)' and other overlooked binomials in 36 vascular plant families". Taxon 31(1):65-73.
  5. ^ Hymenodictyon In: International Plant Names Index. (see External links below).
  6. ^ Nathaniel Wallich. 1824. Flora Indica; or Descriptions of Indian Plants 2:148. The Mission Press. Serampore, India. (see External links below)
  7. ^ Umberto Quattrocchi. 2000. CRC World Dictionary of Plant Names volume II. CRC Press: Boca Raton; New York; Washington, DC, USA. London, UK. ISBN 978-0-8493-2676-9 (vol. II). (see External links below).
  8. ^ Ulrika Manns and Birgitta Bremer. 2010. "Towards a better understanding of intertribal relationships and stable tribal delimitations within Cinchonoideae s.s. (Rubiaceae)". Molecular Phylogenetics and Evolution 56(1):21-39. doi:10.1016/j.ympev.2010.04.002
  9. ^ "Hymenodictyon Wall." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2023-03-20.